EP 0698309 B1 19970409 - PHASE-SHIFTING APPARATUS FOR INTERCONNECTING TWO SYNCHRONOUS POLYPHASE AC NETWORKS
Title (en)
PHASE-SHIFTING APPARATUS FOR INTERCONNECTING TWO SYNCHRONOUS POLYPHASE AC NETWORKS
Title (de)
EINRICHTUNG ZUR PHASENVERSCHIEBUNG VON SPANNUNGEN UM ZWEI SYNCHRONE MEHRPHASENWECHSELSPANNUNGSNETZWERKE ZU VERBINDEN
Title (fr)
APPAREIL DE DEPHASAGE DE TENSIONS POUR INTERCONNECTER DEUX RESEAUX SYNCHRONES POLYPHASES A COURANT ALTERNATIF
Publication
Application
Priority
- CA 9400259 W 19940509
- US 6151293 A 19930514
Abstract (en)
[origin: WO9427351A1] The method of phase-shifting a voltage applied to a susceptance interconnecting a phase line of a first polyphase AC network with a corresponding phase line of a second polyphase AC network, both AC networks being synchronous, comprises the steps of: connecting a primary winding of a transformer in series with the susceptance; deriving from the AC networks, an excitation voltage having a phase angle with respect to a phase voltage provided by the phase line of the first AC network; and applying the excitation voltage to a secondary winding of the transformer, whereby the excitation voltage combines through the transformer with the phase voltage to cause phase-shifting of the voltage applied to the susceptance. This method is implemented with a phase-shifting interconnecting apparatus comprising series transformer arrangements having primary windings in series with capacitive and inductive susceptances, and secondary windings for receiving excitation voltages derived from the phase voltages of the first AC network. Angles ofphase-shifting produced by the series transformer arrangements can be changed either by changing portions of the primary windings connected in series with the susceptances, or by modulating amplitudes of the excitation voltages.
IPC 1-7
IPC 8 full level
H02J 3/06 (2006.01); H02J 3/38 (2006.01); H02J 3/44 (2006.01)
CPC (source: EP KR US)
H02J 3/06 (2013.01 - EP US); H02J 3/38 (2013.01 - EP US); H02J 3/46 (2013.01 - KR)
Citation (examination)
US 4621198 A 19861104 - ROBERGE GERALD [CA], et al
Designated contracting state (EPC)
BE DE DK ES FR GB IE IT NL SE
DOCDB simple family (publication)
WO 9427351 A1 19941124; AU 6643594 A 19941212; AU 676561 B2 19970313; BR 9406688 A 19960206; CA 2161244 A1 19941124; CA 2161244 C 19990112; CN 1123066 A 19960522; DE 69402544 D1 19970515; DE 69402544 T2 19971204; DK 0698309 T3 19970825; EP 0698309 A1 19960228; EP 0698309 B1 19970409; ES 2103129 T3 19970816; JP H08511152 A 19961119; KR 0173717 B1 19990501; KR 960702691 A 19960427; NO 311156 B1 20011015; NO 954222 D0 19951023; NO 954222 L 19951023; NZ 265913 A 19960925; US 5619119 A 19970408
DOCDB simple family (application)
CA 9400259 W 19940509; AU 6643594 A 19940509; BR 9406688 A 19940509; CA 2161244 A 19940509; CN 94192091 A 19940509; DE 69402544 T 19940509; DK 94915007 T 19940509; EP 94915007 A 19940509; ES 94915007 T 19940509; JP 52476494 A 19940509; KR 19950705065 A 19951113; NO 954222 A 19951023; NZ 26591394 A 19940509; US 53506095 A 19951101